Why food around your soak actually matters

A warm bath is more than a pleasant indulgence. The water in our beer bath and wine bath sits at 35-38 °C, and combined with the built-in whirlpool it works on the whole body. Blood vessels widen, the heart beats a little faster, and some of your blood is drawn toward the skin so the body can shed the extra heat. All of this happens while you simply lie back and rest. That is exactly why what you eat and drink before and after the treatment matters more than it first appears.

Sit down to a heavy lunch just before your soak and the body has to juggle two demanding jobs at once: digesting and cooling down. During digestion blood pools in the gut, yet a warm bath pulls it back toward the skin. The usual result is a sense of heaviness, mild nausea or sluggishness. Turning up on a completely empty stomach is no better, though. Widened vessels and heat can more easily trigger dizziness or weakness when there is no steady supply of energy to draw on.

The sweet spot lies somewhere in between: comfortably fed, but not stuffed. Health sources agree that heat and the water's hydrostatic pressure place a mild load on the circulatory system, roughly like light physical activity. So the same common sense that applies to eating sensibly before exercise or a sauna applies here too. Our aim is for you to feel good throughout the full ninety minutes in our private rooms - and that begins with what and when you eat before you ever step into the tub.

In this guide we walk through what to eat beforehand, how to handle hydration, what to steer clear of, and how to treat yourself afterwards. This is not a strict diet, just a handful of simple habits that turn an afternoon at the spa into something smooth and genuinely relaxing.

How long before your soak to eat, and how much

The simplest rule is this: have your main meal roughly two to three hours before your booked time. That gives your stomach long enough to do most of the work, so your blood is not torn between digestion and cooling the body in warm water. At the same time you will not be so hungry that the sudden widening of your vessels catches you off guard. If you are coming straight from work and your last proper meal was a while ago, a light snack about forty minutes beforehand does the trick.

Portion size matters just as much as timing. Before a soak, less is more. Being about eighty per cent full beats a plate you can barely rise from. A stuffed stomach paired with heat and a slightly raised heart rate is the single most common reason someone starts to feel woozy in the bath. You want energy and steadiness, not heaviness.

If you are planning a longer session - a Combo bath in Zlatý pramen with friends, say, or one of the V.I.P. rituals - bear in mind you will spend more time with us than at a standard ninety-minute soak. The V.I.P. Beer SPA and V.I.P. Wine SPA in Smaragdový pramen run two and a half to three hours and open with a cedar phytobarrel. That means the body stays warm for longer and loses more fluid.

  • Main meal: 2-3 hours before you arrive, a moderate portion.
  • Light snack: 30-45 minutes before your soak if it has been a while since you ate.
  • Never arrive completely famished, and never overfed.
  • For longer sessions, plan for greater fluid loss.
  • Coffee is fine, but not three espressos right before the tub.

Keep those few points in mind and your body will have a steady supply of energy plus the room to process the heat calmly. The rest is just rest.

What to eat before your soak

Before a warm bath, easily digested meals that give you energy without weighing you down for hours are the ones that pay off. A combination of complex carbohydrates and protein with a modest amount of healthy fats works beautifully. Aim for a colourful plate rather than a fatty or heavy one. The goal is to feel comfortable and have enough energy to rest, not to digest.

In practical terms, porridge with fruit does the job, as does wholegrain bread with quark or turkey ham, chicken with rice and vegetables, fish with potato, or a light vegetable salad rounded out with egg or pulses. Fruit such as a banana or an apple makes a quick, easily digested snack when there is no time for a full meal. Yoghurt with a handful of nuts is another reliable choice when you need something small and balanced.

What you want to avoid beforehand is fried and very fatty dishes, large portions of red meat, heavy sauces or strongly spiced food. Such a meal takes a long time to digest, and in warm water that easily surfaces as heaviness or nausea. The same caution applies to a lot of sweets right before you soak - a rapid sugar spike followed by the crash will not feel pleasant during the quiet phase in the whirlpool.

  • Ideal: porridge, wholegrain bread, chicken with rice, fish, vegetable salad with egg.
  • Quick snack: banana, apple, yoghurt with nuts, a handful of almonds.
  • Better skipped: fried food, fatty meat, heavy sauces, lots of sugar.
  • Moderate portions, no overeating.

And one more note about beer. Even though you bathe in a beer bath with genuine craft beer and have your own tap in the room, do not step into the tub after downing several beers beforehand. Alcohol and heat stack their effects, which speeds up dehydration and puts more strain on your circulation. Save the sipping for the calm phase of the treatment itself, once you are lying back and relaxing.

Hydration: the detail that matters most

Of all the advice around food and the spa, hydration is the crucial one. In water at 35-38 °C the body sweats, even if you do not feel it much while you are submerged. Both the experts and everyday experience agree that after time in the heat people easily underestimate how much fluid they have lost. So it pays to arrive at your treatment well hydrated and to keep topping up afterwards.

Before you come, drink plenty of plain water across the day. There is no need to gulp down half a litre on the doorstep; steady sipping in the hours before your booking is better. During the soak itself water is provided, and it is worth taking a drink between the submersion and the rest phase on the straw bed. For longer sessions, such as the V.I.P. ritual in Smaragdový pramen with its cedar phytobarrel, this matters all the more, because you spend longer in the heat.

Plain water or unsweetened herbal tea is your best bet. Sugary sodas and energy drinks do not actually quench thirst, and paired with heat they tend to burden the body rather than help it. Alcohol has a diuretic effect, so if you are sampling a drink in the room alongside your beer or wine bath, chase it with water. One glass of beer or wine belongs to the experience, but between sips simply drink ordinary water too.

  • Arrive well hydrated, drinking steadily throughout the day.
  • Sip water between phases during your soak.
  • Best drink: plain water or unsweetened herbal tea.
  • Balance any alcohol with water in whatever ratio suits you.
  • Leave the sugary and energy drinks out.

The sign that you hydrated well is that after the soak your mouth is not dry, your head is not spinning and you have no headache. If you do feel slightly tired, that is a normal response to the heat, and the best answer is a glass of water, some quiet and a moment's rest before you get up and head home.

What happens to your body during the soak

To understand why we recommend this particular way of eating and drinking, it helps to know what is actually going on in the warm water. Our treatment has a clear structure: twenty minutes submerged and fifty minutes resting on a heated bed of wheat straw, ninety minutes in all. During the first phase the heat warms the muscles through, eases tension and widens the vessels. The whirlpool adds a gentle massage, and the water's hydrostatic pressure works evenly across the whole body.

In the beer bath, Saaz hops, yeast and malt dissolve into the water. These carry B-group vitamins and other components that are good for the skin. In the wine bath, red wine, grape-seed extract, vine leaf, honey, herbs and French lavender flowers do the work. In both cases the active substances are absorbed into skin that is warmed and better perfused, which is the main reason we help the body along beforehand with steady energy and plenty of fluid.

This is exactly why the rest phase is so important. Once you climb out of the tub, the body gradually evens out its temperature on the straw bed and your pulse returns to normal. The electric fireplace in the room gives off a pleasant warmth and soft light, so the mood stays cosy even after you leave the water. Here you will appreciate having eaten sensibly beforehand: no hunger to pull you out of your rest, no full stomach to stop you unwinding.

After the treatment we suggest you do not wash the beer or wine extract straight off with soap. For around two hours afterwards we let the active substances keep working on the skin, which leaves it softer and more hydrated for a day or two. A shower is available in every room, but a brief rinse without soap is enough. This detail dovetails nicely with how you care for your skin from the inside: good hydration and light meals do it just as much good as the active substances from the bath.

What to eat after your soak

After the soak the body is in a pleasantly loose state, warmed through and calmed. The best thing you can do is not to rush. Give yourself a moment of quiet and a glass of water, and only then start thinking about food. Straight after a warm bath you usually have little appetite, because digestion was dialled down. But as the body returns to normal, hunger comes back naturally, and it is good to answer it with something light and balanced.

After the treatment, a lighter meal that replaces fluids and minerals works wonderfully. Vegetable soup, a salad with some protein, yoghurt with fruit or wholegrain bread with quark are all dependable choices. If you are here for a V.I.P. ritual or a wine bath, part of the experience is often a fruit and cheese platter or a bottle of wine right there in the room - a pleasant, light reward in its own right that belongs to the mood.

Heavy, fatty food right after the soak, by contrast, needlessly burdens a relaxed body. So it is best to wait until natural hunger arrives and then favour a dish that soothes rather than weighs you down. Do not forget water either, because replacing fluids after the heat matters just as much as it did beforehand. A glass of plain water or unsweetened tea will do more for how you feel than a sugary treat.

  • Do not rush; rest and a glass of water first.
  • Ideal food: soup, a salad with protein, yoghurt with fruit, wholegrain bread.
  • A fruit and cheese platter with the wine bath is a light reward that belongs to the experience.
  • Avoid heavy and fried food right after the soak.
  • Keep topping up your fluids afterwards too.

And once more on that soap-free two-hour window: if you are heading out to a restaurant after the soak, go just as you are. A brief rinse without soap is enough, and your skin will hold on to the active substances from our treatment for longer.

Special cases and common questions

Not every visit looks the same, and a few situations are worth thinking through in advance. The first is alcohol. Here you can enjoy genuine craft beer in the beer bath or a bottle of wine alongside the wine bath, but common sense applies. Alcohol and heat stack up and together speed the loss of fluids, so drink water between sips and do not overdo it. Anyone who arrives already well into their cups may tolerate the heat less well. A few sips with your treatment are part of the experience; getting drunk before it is not.

The second common question concerns diabetes and sensitivity to swings in blood sugar. If you keep an eye on your sugar levels, come having eaten, carry a quick source of energy, and favour a stable meal built on complex carbohydrates over short-lived sweets. Heat can alter how symptoms feel, so pay attention to how you are doing and take a break on the straw bed if you need one.

The third area is health restrictions. Our baths and massages are not suitable for everyone. Among the groups we advise against them are, among others, people with cardiovascular disease, pregnant women, those with acute inflammation and fever, open wounds or skin infections, epilepsy, and allergies to the bath ingredients. The full list of contraindications is set out in our terms and conditions. If you are unsure whether the treatment is right for you, check with your doctor beforehand.

And finally, a practical tip about gifts. If you are looking for an experience for someone for whom a warm bath does not suit right now, or who is going through a time when they cannot take one, a good solution is a gift voucher valid for twelve months. The recipient picks their own date and type of treatment when it works for them. If you would like to talk anything through in advance, reach us via our contact page and we will gladly help with the choice and with timing your meals around the visit.

Summary and how to plan your visit

Put all the principles together and you get a simple plan that is easy to remember. Before your soak, eat a moderate portion of light food roughly two to three hours ahead, arrive well hydrated, and turn up neither famished nor overfed. During the treatment, drink water between phases and enjoy alcohol in moderation. Afterwards, do not rush, replace your fluids and reward yourself with something light once natural hunger returns.

These small things make a big difference to how much you enjoy the whole break. The gap between a woozy soak after a heavy lunch and a smooth, pleasant bath you leave feeling refreshed often comes down to just two or three simple choices at the table and the glass. And since people come to us precisely for the calm and the comfort, this part deserves the same care as choosing your room.

Tailor the capacity and length of the treatment to who you come with and for how long. For two, the cosy Rubínový pramen with a single tub is lovely, and the beer bath here starts from 148 EUR per room. For a group of up to four, Zlatý pramen with two tubs is ideal, where a combination of beer and wine also works from 238 EUR. Anyone after the very best for two will appreciate the V.I.P. rituals in Smaragdový pramen from 293 EUR. And if you want to unwind without a tub, Safírový pramen offers massages in a salt cave from 33 EUR.

You will find us at Dejvická 255/18 in Prague 6, two minutes from Hradčanská metro station. We are open on weekdays from 10 a.m. to 10 p.m. and at weekends from 10 a.m. to 11 p.m. Picking a slot is easy through our booking page. Plan your meals, give yourself some quiet, and leave the rest to warm water, hops and wine.

Sources

  1. Post-prandial cardiovascular responses in man after ingestion of carbohydrate, protein or fat (Acta Physiologica Scandinavica, 1992) - pubmed.ncbi.nlm.nih.gov
  2. Passive heat therapy for cardiovascular disease: current evidence and future directions (2025) - pubmed.ncbi.nlm.nih.gov
  3. NHS: Water, drinks and hydration - www.nhs.uk